While every patient is different, people who respond well to B12 injections often report feeling more refreshed, more focused, and more capable of following through on healthy habits
Using a lesser diluent, like simple sterile water, is possible for single-use applications, but it offers no protection against contamination once the vial's septum has been punctured
Krivic et al., 2006)
Oral capsules: Used for digestive issues or for those who prefer non-injectable options
N,N-dimethylphenethylamine is a GRAS flavoring additive that is very common in a variety of foods including cereal and generally safe when uses in low amounts as a flavor but safety has not been established at the high amounts used in supplements
Some patients may require imaging studies (ultrasound, CT scanning) or referral to hepatology, haematology, or oncology services